Results 81 to 90 of about 1,682 (210)

Assessment of the Biogeography and Molecular Phylogenetics of Sea Cucumbers (Echinodermata: Holothuroidea) in South Africa

Journal of Biogeography, Volume 53, Issue 6, June 2026.
ABSTRACT Aim The biogeography and evolution of South African sea cucumbers have been previously explored; however, these aspects lack detailed study. This study (1) explores the biogeography of sea cucumbers along the coastline of South Africa (SA) and (2) presents a preliminary molecular phylogeny based on the mitochondrial 16S marker.
Jessica S. Victorino, Syd Ramdhani, Angus H. H. MacDonald, Ahmed S. Thandar   +3 more
wiley   +1 more source

New records of Ophiuroidea (Echinodermata) from the coast of Chiapas, Mexico [PDF]

, 2016
Knowledge about ophiuroids from Chiapas, Mexico, is still limited; only Diopederma daninana was previously recorded in the state. In order to contribute to the knowledge of their diversity in the region, ophiuroids were collected in four localities of ...
Rangel-Solís, Pedro Diego, López-Pérez, Andrés, Herrero-Pérezrul, María Dinorah, Granja-Fernández, Rebeca   +3 more
core   +1 more source

Adaptational Significance of the Patterns of Ophiuroid Development [PDF]

American Zoologist, 1975
There is only limited information on ophiuroid developmental patterns, larvae being known for only 4% of the 2000 living ophiuroids. Three modes of development are distinguished (planktotrophic, direct, abbreviated) on the basis of egg size and number, larval form and life span, and post-larval size. This generalization is applied to an analysis of the
openaire   +1 more source

Into the Wild: Farm‐Derived Energy and Nutrients Enter Marine Food Webs With Carrying Capacity Implications for Aquaculture Management

Reviews in Aquaculture, Volume 18, Issue 3, June 2026.
ABSTRACT Marine aquaculture is expanding globally, yet its interactions with surrounding ecosystems remain complex and insufficiently understood. This study reviews the fluxes of energy and nutrients from three major aquaculture systems: finfish cages, suspended bivalves, and seaweed farms and considers their implications for ecosystem functioning and ...
Myriam D. Callier, Ramon Filgueira, Carrie J. Byron, Daniele Brigolin, Dror L. Angel, Sophie J. I. Koch, Bobbi Hudson, Frank Kane, Heather Moore, Antonio Agüera, Lotta C. Kluger, Christopher W. McKindsey   +11 more
wiley   +1 more source

Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic) [PDF]

, 2011
The Ophiuroidea collected from mud volcanoes and adjacent bathyal environments from the Gulf of Cadiz are reviewed. Thirteen species from six families—Ophiacanthidae, Ophiactidae, Amphiuridae, Amphilepididae, Ophiuridae and Ophiolepididae— were ...
Cabrinovic, Andrew, Rodrigues, Clara F., Paterson, Gordon L. J., Cunha, Marina R.   +3 more
core   +2 more sources

Evaluation of Catch Performance and Environmental Impact of Technical Gear Modifications for a More Sustainable Scallop Dredging Fishery

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
Catch and environmental performance of modified scallop dredge designs were assessed. Skid belly bags increased scallop catch by 14%–19% and reduced gear wear. N‐Virodredge reduced catch of scallop juveniles and sorting time. Gear footprint on the seabed was reduced by 50% for skid belly bags. N‐Virodredge cut fuel use by 30%, reducing carbon emissions
Blair Easton, Caleb Moffat, Moritz Eichert, Aisha Abdallah, Natalie Hold, Michel J. Kaiser, Marija Sciberras   +6 more
wiley   +1 more source

A study on the identification of asteroids and ophiuroids found at germinal district Bolinao, Pangasinan

, 1992
A study on the identification of asteroids and ophiuroids was conducted in the months of October and December 1991, and April 1992 within the vicinity of the Germinal District, Bolinao, a commercialized fishing town, in the province of Pangasinan ...
Tolentino, Myra R., Saniel, Trisha Columbia A.   +1 more
core  

Century‐Scale Changes in the Feeding Patterns of Demersal Fish Species in the Western North Sea

Fish and Fisheries, Volume 27, Issue 2, Page 99-115, March 2026.
ABSTRACT Understanding the extent and magnitude of change in marine food webs requires historical data that predates modern monitoring efforts. Such information can provide invaluable insights into the longer‐term impacts of altered trophic interactions, yet it is rarely incorporated into marine policy frameworks.
Georgina L. Hunt, Nicholas V. C. Polunin, Georg H. Engelhard, Ben D. Wigham, John K. Pinnegar   +4 more
wiley   +1 more source

Stratigraphical section of Triassic sediments with ophiuroids.

, 2013
(A) Section of the northern and southern part of the Wojkowice Quarry (from [25]). 1, dolomitic limestones and marls; 2, cellular dolomitic limestones; 3, organodetrital limestones with bivalve detritus and columnals; 4, marly limestones; 5, pelitic ...
Mariusz A. Salamon (298312), Tomasz Brachaniec (298318), Robert Niedźwiedzki (298313), Przemysław Gorzelak (298321), Rafał Lach (298316)   +4 more
core   +1 more source

Diet Composition and Variability of Wild Octopus vulgaris and Alloteuthis media (Cephalopoda) Paralarvae: a Metagenomic Approach

Frontiers in Physiology, 2017
The high mortality of cephalopod early stages is the main bottleneck to grow them from paralarvae to adults in culture conditions, probably because the inadequacy of the diet that results in malnutrition. Since visual analysis of digestive tract contents
Lorena Olmos-Pérez, Álvaro Roura, Álvaro Roura, Graham J. Pierce, Graham J. Pierce, Stéphane Boyer, Ángel F. González   +6 more
doaj   +1 more source